SPRUJ42E March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
PRODUCTION DATA
Windowed Watchdog Size Control configures the size of the window for the digital windowed watchdog.
Return to Summary Table
| Instance Name | Physical Address |
|---|---|
| WDT0 | 5210 00A8h |
| WDT1 | 5210 10A8h |
| WDT2 | 5210 20A8h |
| WDT3 | 5210 30A8h |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| WWDSIZE | |||||||
| R/W | |||||||
| 0h | |||||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| WWDSIZE | |||||||
| R/W | |||||||
| 0h | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| WWDSIZE | |||||||
| R/W | |||||||
| 0h | |||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| WWDSIZE | |||||||
| R/W | |||||||
| 0h | |||||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:0 | WWDSIZE | R/W | 0h | WWDSIZE: Digital Windowed Watchdog Window Size. User and privilege mode [read], privileged mode [write]: Value written to WWDSIZE Window Size 0x00000005 100% [Functionality same as the time-out digital watchdog.] 0x00000050 50% 0x00000500 25% 0x00005000 12.5% 0x00050000 6.25% 0x00500000 3.125% Any other value 3.125% Note: Incorrect value being written to watchdog window size control register If an incorerct value is written to the WWDSIZE field, or if a system disturbance causes the WWDSIZE field to have a value other than 0x5, 0x50, 0x500, 0x5000, 0x50000, or 0x500000, then the window size will be configured to be 3.125%. This increases the chances of getting a reset due to the windowed watchdog, which enables the system to handle the cause for the incorrect configuration. Note: Configuration of DWWD Window Size The DWWD window size can be selected by the application even when the DWWD counter is already enabled. If a change to the WWDSIZE is made before the watchdog service window is opened, then the change in the configuration takes effect immediately. If a change to the WWDSIZE is made when the watchdog service window is already open, then |